CN107215109A - Printing equipment and Method of printing - Google Patents
Printing equipment and Method of printing Download PDFInfo
- Publication number
- CN107215109A CN107215109A CN201710148816.2A CN201710148816A CN107215109A CN 107215109 A CN107215109 A CN 107215109A CN 201710148816 A CN201710148816 A CN 201710148816A CN 107215109 A CN107215109 A CN 107215109A
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- China
- Prior art keywords
- printing
- overlapping
- image
- send
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J11/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
- B41J11/36—Blanking or long feeds; Feeding to a particular line, e.g. by rotation of platen or feed roller
- B41J11/42—Controlling printing material conveyance for accurate alignment of the printing material with the printhead; Print registering
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/16—Means for paper feeding or form feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/0009—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material
- B41J13/0027—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets control of the transport of the copy material in the printing section of automatic paper handling systems
Abstract
The present invention provides printing equipment and Method of printing, the execution that can suitably control overlapping company to send.Printing equipment has：Delivery section, it conveys print media；Printing portion, it performs printing to the print media；And control unit, it controls the delivery section and printing portion, the delivery section is able to carry out overlapping company and sent, the overlapping company send the part for being to locate overlapping follow-up print media in vain more than the bottom side for the image being printed onto on the print media to be conveyed, and the control unit limits the execution that the overlapping company send according to the concentration of the bottom.In the case where the concentration of the bottom is more than defined threshold value, the control unit send the delivery section execution overlapping company.
Description
Technical field
The present invention relates to printing equipment and Method of printing.
Background technology
In order to realize the high speed of printing, it is known to the printer sent using overlapping company, (remember by follow-up print media
Recording medium) a part overlap in a part for leading print media in the state of conveyed (with reference to patent document 1).
【Patent document 1】Japanese Unexamined Patent Publication 2013-14090 publications
In overlapping company send, the print media of upside and the mechanism printed are approached in the overlapping scope of print media
Or contact etc., so that it is contemplated that the risk of print quality reduction.Therefore, it can be said that needing consideration to have performing when overlapping company send
Without such risk.
The content of the invention
The present invention exactly complete in view of the above problems there is provided the printing that can suitably control execution that overlapping company send
Device and Method of printing.
The printing equipment of the mode of the present invention has：Delivery section, it conveys print media；Printing portion, it is to described
Print media performs printing；And control unit, it controls the delivery section and printing portion, and the delivery section is able to carry out overlapping company
Send, it is to locate overlapping follow-up printing in vain more than the bottom side for the image being printed onto on the print media that the overlapping company, which send,
A part for medium is conveyed, and the control unit limits the execution that the overlapping company send according to the concentration of the bottom.
According to the structure, overlapping company can be limited according to the concentration of the bottom for the image being printed onto on print media and sent
Execution.Curling therefore, it is possible to the print media according to the Yu Bai peripheries changed according to the concentration of the bottom is (curved
It is bent) degree be the risk possibility occurrence, limit the execution that overlapping company send.
The mode of the present invention can also be that the control unit is according to the expression included in the file for showing described image
The final word of the end of this document determines the bottom.
According to the structure, the bottom can be to easily and reliably determined.
The mode of the present invention can also be that the control unit is generated for making the printing portion printing described image
, define a little or the data without point according to each pixel, the region corresponding with the bottom in the data
In quantitative determination a little described in bottom concentration.
According to the structure, can than print the bottom it is early at the time of the appropriate judgement bottom concentration.
The mode of the present invention can also be, in the case where the concentration of the bottom is more than defined threshold value,
The control unit send the delivery section execution overlapping company.
According to the structure, concentration that can be in the bottom it is higher thus can be predicted the Yu Bai peripheries printing be situated between
Overlapping company is not performed in the case that the amount of crimp of matter is larger to send.
The mode of the present invention can also be that the control unit makes the printing portion according to the concentration of the bottom
The print processing performed to print the bottom of described image is different.
, can be according to holding that the print processing and overlapping company of the concentration of bottom control bottom are sent according to the structure
OK, high-quality print result can be accessed in any case.
The technological thought of the present invention can also be realized by the device beyond printing equipment.For example, printing dress can will be included
The method (Method of printing) of each step of execution is put as invention.
Also, computer is performed the storage medium of the embodied on computer readable of the program of this method and the program that is stored with
Also all it is to set up as invention.
Brief description of the drawings
Fig. 1 is the block diagram for the schematic configuration for showing printing equipment.
Fig. 2 is the flow chart for showing the processing that image processing part is performed.
Fig. 3 is the figure of the view data for illustrating to scan every time.
Fig. 4 is the flow chart for the details for showing switching determination.
Fig. 5 is the flow chart of details for showing to judge in advance.
Fig. 6 A and Fig. 6 B are the figures for showing scanning numbering and the relation of each image data amount.
Fig. 7 A are the figures for showing to perform the state after the lower end processing that overlapping company send, and Fig. 7 B are under showing that execution is common
The figure of state after the processing of end.
Fig. 8 A be show to perform lower end processing that overlapping company send and overlapping company send after state figure, Fig. 8 B are to show to hold
The figure of state after the common lower end processing of row.
Fig. 9 is the flow chart of the details for the switching determination for showing the 2nd embodiment.
Figure 10 is the figure for showing the state after the common lower end processing of execution of variation.
Label declaration
10 printing equipments；11 image processing parts (data processing division)；20 printing portion；21 printing mechanism control units；22 printings
Head；22a nozzle opening surfaces；23 balladeur trains；26 delivery sections；27 control units.
Embodiment
Below, with reference to each brief description of the drawings embodiments of the present invention.In addition, each accompanying drawing is merely used for explanation originally
The example of embodiment.
1. device is outlined：
Fig. 1 shows the structure of the printing equipment 10 of present embodiment with easy block diagram.Printing equipment 10 can be understood as
The product such as printer, the compounding machine of the function containing printer.Also, a part or complete for this product can also be referred to
Portion and referred to as print control unit.Printing equipment 10 is one of the executive agent of the Method of printing of the present invention.
In Fig. 1, printing equipment 10 is illustrated into comprising image processing part 11, guidance panel 12, communication interface (I/F)
13rd, the structure of printing portion 20.IC and other storage of the image processing part 11 such as being configured to comprising having CPU, ROM, RAM
Medium etc..Image processing part 11 uses RAM etc. as workspace, performs the calculation process based on the program preserved in ROM etc.,
Thus, the various processing required for the printing including generation of the execution comprising view data.Image processing part 11 can also be explained
Into the part of functions of the overall master controller of control printing equipment 10.
Guidance panel 12 includes the various buttons of the operation for accepting user and relevant with printing equipment 10 for showing
The display part of various information etc..The display part that guidance panel 12 has can be used as touch panel and play a role.At image
Reason portion 11 obtains input data via communication interface 13 from external equipment (not shown).Input data is to utilize the performance of certain form
It is used as image (the optional image for including the objects such as photo, CG, word of user, hereinafter referred to as object diagram of print object
Picture) data file.Communication interface 13 is for by printing equipment 10 and external equipment be wireless or interface of wired connection
General name.
Printing dress is used as such as smart mobile phone, panel type terminal, digital camera, personal computer (PC), scanner
Put 10 printed required for the various equipment of information input source belong to external equipment.Printing equipment 10 can connect via communication
Mouth 13 is set for example, by the various means such as USB cable, cable network, WLAN, E-mail communication and telecommunications metrics and outside
Standby connection.Certainly, printing equipment 10 can also be from inside the device storage medium or be inserted into COM1 (not shown)
The outside storage medium such as storage card reads input data.
Image processing part 11 performs the data processing (data processing step) for generating view data according to input data.
From the meaning, image processing part 11 can also be referred to as data processing division.
Fig. 2 illustrates the data processing that image processing part 11 and the input data measured of page 1 are accordingly performed using flow.Figure
As processing unit 11 via the grade of communication interface 13 when obtaining input data (step S100), implement defined become to the input data
Change processing (step S110).Format conversion of the conversion process said here comprising data, resolution conversion, color (chromaticity diagram)
Various conversion process known to conversion etc..By step S110, by input data be transformed into using printing equipment 10 use it is defeated
Go out chromaticity diagram (such as cyan (C), magenta (M), yellow (Y), the chromaticity diagram of the various mass colours of black (K)) and show each pixel
Color bitmap data.
In the step s 120, image processing part 11 to after step S110 data perform halftone process, thus, generation with
The halftone data of dot pattern expressive object image.
Dot pattern refers to a little (Dot On) (spraying ink)/arrangement without point (Dot Off) (not spraying ink),
It may also be referred to as the formation of the point of each pixel, do not formed.As described above, being the type using CMYK inks in printing equipment 10
In the case of, halftone data comprising every kind of CMYK and each pixel a little/data without point.Also, halftone data is removed
Only represent beyond a little/2 Value Datas without point or represent the point of the volume of every 1 drop sizes different from each other
The point of arbitrary dimension in (for example, point of the sizes referred to as a little bigger, midpoint, dot etc.) a little or without many of point
Value (4 value) data.
After generation halftone data, image processing part 11 performs the switching determination (step S130) of print processing.In addition,
Image processing part 11 performs corresponding with the printing of regulation unit according to halftone data generation according to step S130 result of determination
View data view data generation processing (step S140).The details of step S130, S140 will be said below
It is bright.
Printing portion 20 is the mechanism that printing step is realized in the printing carried out according to view data to print media.Below,
Gone on to say assuming that print media is paper, but it is also possible to use the material beyond paper as print media.Printing portion 20 is used
Printing type be ink-jetting style, printing portion 20 has printing mechanism control unit 21, printhead 22, balladeur train 23, balladeur train (CR) electricity
Machine 24, print cartridge 25 etc..Printing mechanism control unit 21 is the circuit for being configured to include IC and various storage mediums etc., according to program control
The action of printing portion 20 processed.Also, there is printing equipment 10 conveying print media to be the delivery section 26 for realizing supplying step.Also may be used
To regard delivery section 26 as the structure included in a part for printing portion 20.Printing mechanism control unit 21 can be described as control and beat
At least a portion of the control unit 27 of print portion 20 and delivery section 26.Also, can also be by image processing part 11 and printing mechanism control
Portion 21 processed is understood as the control unit 27 in the lump.
Printhead 22 has multiple nozzle Nz, and the liquid (ink) of supply is sprayed from each nozzle Nz.It will can also beat
Print first 22 referred to as print head, record head, liquid ejection (injection) is first-class.Example goes out to use a nozzle Nz for performance and will in Fig. 1
The nozzle rows NL that nozzle Nz is arranged along fixed-direction.Balladeur train 23 carry printhead 22, receive CR motors 24 power and edge
Main scanning direction movement as defined in.The driving of CR motors 24 is controlled by printing mechanism control unit 21.
Balladeur train 23 carries multiple print cartridges 25, such as print cartridge 25 of every kind of CMYK inks.Each print cartridge 25 is supplied to printhead 22
To ink.Print cartridge 25 can not also be equipped on balladeur train 23 and be arranged on the assigned position in printing equipment 10.
Delivery section 26 conveys paper under the control of printing mechanism control unit 21.Delivery section 26, which is included, to be used for defined defeated
Send the roller of direction conveying paper and the motor for making roller rotation etc..Conveying direction is substantially vertical with main scanning direction.It is defeated
It can also include automatic paper feeding device (ADF to send portion 26：Auto Document Feeder) structure, the automatic paper feeding device
Paper can be continuously conveyed from paper feeding disk (not shown) or to the supply source of the paper such as carton.In addition, delivery section 26 can be held
The overlapping company of row send, and it is to locate overlapping follow-up paper in vain more than the bottom side for the image being printed onto on paper that the overlapping company, which send,
A part conveyed.Wherein, delivery section 26 performs overlapping company according to the result of determination of the step S130 and sent.
The picture number corresponding with the printing of regulation unit that printing mechanism control unit 21 will be generated in step S140 (Fig. 2)
According to being transmitted to printhead 22.The electricity equivalent to view data can also be exported in the lump from printing mechanism control unit 21 to printhead 22
Signal and drive signal (one kind of pulse).Describe in detail and omit, in printhead 22, each picture showed according to view data
Element a little/information without point (or have a little bigger, have midpoint, have dot, the information without point), switch to located at each nozzle Nz
Driving element apply the drive signal, hereby it is achieved that sprayed according to view data from each nozzle Nz/do not spray ink.
Printhead 22 sprays ink, defeated during being moved by balladeur train 23 to main scanning direction from such each nozzle Nz
The point that ink is formed on the paper of the conveying of portion 26 is sent, hereby it is achieved that the printing of object images.
Above-mentioned " printing of regulation unit " for example refers to 1 scanning (also referred to as pass) of printhead 22.Scanning refers to
With the movement of the lateral another side in one end of balladeur train 23 from main scanning direction or from the another side to the movement of a side,
Printhead 22 sprays the processing of ink according to view data.Printing portion 20 obtains the printing with providing unit from image processing part 11
(1 scanning) corresponding view data, makes delivery section 26 perform the conveying of the predetermined distance (benchmark paper feeding amount) of print media, beats
First 22 view data based on the acquirement of print perform scanning, can be on 1 paper by many by the way that above-mentioned circulation is repeated
It is secondary to scan through into object images.
According to shown in the dotted arrow in Fig. 2 flow chart, the processing of step S130, S140 is performed repeatedly.Specifically,
Image processing part 11 is returned when generation is with printing (1 scanning) corresponding view data of regulation unit in step S140
Return to step S130 and processing is repeated.Image processing part 11 is terminating the last scanning pair in generation and page by step S140
At the time of the view data answered, terminate Fig. 2 flow chart.
2：Scanning and the relation of view data：
Fig. 3 is for illustrating one of the view data for each scanning that image processing part 11 is generated in step S140
Figure.In figure 3 example go out in units of scanning decompose page 1 amount halftone data HT when each scanning view data IDc,
IDm、IDy、IDk.Cut zone R1, R2, R3, R4, the R5 for the banding for dividing halftone data HT with dotted line and showing distinguish phase
When in the region of the printing in 1 scanning (the 1st scanning, the 2nd scanning, the 3rd scanning, the 4th scanning, the 5th scanning).
Symbol D1 represents main scanning direction, and symbol D2 represents conveying direction.Cut zone R1, R2, R3, R4, R5 are in halftone data
Along the regional towards arrangement corresponding with conveying direction D2 in HT.Cut zone R1, R2, R3, R4, R5 width are (defeated
Send the length on the D2 of direction) it is that the quantity of the grid stroke printed in being scanned according to printhead 22 at 1 time (for example constitutes nozzle rows NL
Nozzle Nz quantity) it is pre-determined.Grid stroke refers to continuously arranged on direction corresponding with main scanning direction D1
The pixel groups of the wire of pixel performance.Cut zone R1, R2, R3, R4, R5 are the beam of grid stroke respectively.Also, cut zone
R1, R2, R3, R4, R5 width are equivalent to above-mentioned benchmark paper feeding amount.
In figure 3, as reference, accordingly example goes out every kind of ink color with a cut zone (cut zone R1)
(CMYK) nozzle rows NL (NLc, NLm, NLy, NLk).Each nozzle rows NL that printhead 22 has is by from the upper of conveying direction D2
Swim total N number of nozzle Nz compositions of the side US towards downstream DS spaced nozzle numbering #1~#N according to the rules.The tool of the N
Body value is not limited, and is used as a N=400.Nozzle rows NL is showed extremely simplely in Fig. 3 (and Fig. 1), with a kind of ink face
The corresponding nozzle rows NL of color be for example made up of multiple nozzle rows or nozzle rows NL directions direction not with conveying direction D2
It is parallel, or each nozzle Nz staggers position on main scanning direction D1.
In the case of using Fig. 3 as reference, image processing part 11 ought perform step S140 first in the flowchart of fig. 2
When, it is correspondingly generated view data IDk with the 1st scanning.It is to define half to scan corresponding view data IDk with the 1st time
K inks in tone data HT cut zone R1 a little/set of the pixel without point, and be to determine to make each pixel pair
Should be in the data of which nozzle Nz (distributing to which of nozzle rows NLk nozzle numbering #1~#N of K inks).Equally, root
According to Fig. 3 example, image processing part 11 is generated in the step S140 of the 2nd time (to be printed with the 2nd scanning in being scanned at the 2nd time
Cut zone R2) corresponding view data IDc, IDm, IDy, IDk.Generation and the 3rd scanning in the step S140 of the 3rd time
(the cut zone R3 printed in being scanned at the 3rd time) corresponding view data IDm, IDk, is generated in the step S140 of the 4th
(the cut zone R4 printed in the 4th scanning) corresponding view data IDc, IDy, IDk is scanned with the 4th, finally (the
5 times) step S140 in generation (the cut zone R5 that prints in the 5th is scanned) corresponding view data is scanned with the 5th
IDc、IDm、IDy、IDk.Certainly, whole ink colors (CMYK) of the view data scanned every time cut in and out, and are object diagrams
As the result dependent on the color itself used.
3. switching determination and the explanation of processing corresponding with the judgement：
Fig. 4 illustrates the switching determination of the print processing in step S130 using flow.In step S131, image procossing
Portion 11 judges whether the generation of current image date (judges) in advance prior to printing.Also, view data generation prior to beating
(step S131 in the case of print：It is), into step S132, on the other hand, in the feelings generated not prior to printing of view data
(step S131 under condition：It is no), into step S134.
Fig. 5 illustrates the details of step S131 leading judgement using flow.First, in step S1310, image
Processing unit 11 obtains the image data amount before the printing stored.
Illustrate an example for the image real time transfer that image processing part 11 and printing mechanism control unit 21 are carried out.Image
Processing unit 11 generates the view data scanned every time, is performed the figure repeatedly according to the input data (halftone data) of the amount of page 1
As processing (be repeated step S140) of the data storage in defined buffer (storage region).On the other hand, printer
Structure control unit 21 reads the view data scanned every time from the buffer, it is performed beating for the view data based on the reading
Print (1 scanning that printhead 22 is carried out).While being read from the buffer view data is deleted from the buffer.
Therefore, image processing part 11 obtained in step S1310 from current time be stored in the buffer in image data amount subtract
The remainder gone after the image data amount generated in the step S140 before tight of this generation, " has been stored as described
Printing before image data amount ".Certainly, at the time of performing step S130 first in the flowchart of fig. 2, step S140 also one
It is secondary to be also not carried out, thus image data amount before the printing stored is 0.Even if also, just first in the flowchart of fig. 2
It is secondary perform after step S140 step S130 at the time of, the image data amount before the printing stored is also 0.
In step S1311, the image data amount of this generation of the storage of image processing part 11.The view data of this generation
Refer to the view data generated in the step S140 before tight.At the time of performing step S130 first in the flowchart of fig. 2, step
Rapid S140 is also once also not carried out, thus " image data amount of this generation " be 0.Should by performing whenever the step S130
Step S1311, image processing part 11 is stored in the picture number that the image data amount generated in each step S140 is scanned every time
According to amount.
As using Fig. 3 explanation as, image processing part 11 be distinguished into every kind of CMYK inks view data IDc,
In the case of the view data that IDm, IDy, IDk generation are scanned every time, image processing part 11 is to these IDc, IDm, IDy, IDk
Quantity is counted as image data amount.Thus, for example accordingly being given birth to the 1st scanning (cut zone R1) shown in Fig. 3
Into image data amount be a kind of color view data IDk, thus be 1.Also, with the 2nd scanning (cut section shown in Fig. 3
Domain R2) image data amount that is correspondingly generated be 4 kinds of colors view data IDc, IDm, IDy, IDk, thus be 4.
In step S1312, image processing part 11 is according to the picture number of each scanning stored in each step S1311
Image data amount before the printing stored obtained according to amount and in newest step S1310, carries out the leading judgement.
Example goes out to scan numbering, image data amount A and image data amount B correlation Fig. 6 A and Fig. 6 B respectively.Scanning is compiled
Number 1~5 refers to total 5 scanning for printing page 1.Image data amount A refers to image processing part 11 just by step
What is obtained in step S130 (step S1310) after the view data of the scanning of S140 generation correspondence scanning numberings is described
" image data amount before the printing stored ".Image data amount B refers to that image processing part 11 is given birth to just by step S140
Storage is described " originally secondary into the step S130 (step S1311) after the view data of the scanning of corresponding scanning numbering
Into image data amount (image data amount scanned every time) ".In Fig. 6 A, Fig. 6 B example, image data amount B is up to
8.This represents that quantity of view data of each ink color of scanning generation every time is 8, i.e., printing equipment 10 uses 8 kinds of colors
Ink.Show that printing equipment 10 adds up to the example of 4 kinds of colors using CMYK inks in Fig. 3 etc., certainly, printing equipment 10 also may be used
To be also to wait the type of many kinds of inks using light green color (Lc), light red (Lm), grey (Lk) ... in addition to CMYK.
Briefly, the generation of view data prior to the situation of printing be exactly image data amount A be not 0 situation.If
Image data amount A is not 0, it may be said that the printing action relative to printing portion 20 stores view data, printing mechanism control unit
21 can not have the image that scanning next time is lingeringly read from the buffer whenever the scanning of printhead 22 is terminated
Data.On the other hand, image data amount A be 0 refer to relative to printing portion 20 printing action without store view data shape
State.In this case, in order to which certain is scanned and is formed and stored in the view data in the buffer at once by printer
Structure control unit 21 is read and in printing.In the case where so not storing view data, printing mechanism control unit 21 has
Shi Bixu temporarily ceases balladeur train 23 or the action of printhead 22, and always etc. until the view data of scanning next time is deposited
Untill storage is in the buffer.
Can also be simply that image processing part 11 is determined as the generation of view data when image data amount A is not 0
Prior to printing, it is determined as the generation of view data not prior to printing when image data amount A is 0.But, in present embodiment
In, in the case of surplus of the generation prior to the printing regulation above of view data, image processing part 11 is determined as view data
Generation prior to printing.As one, image processing part 11 is swept when generating the view data of certain scanning if in this
Before the beginning for preceding 2 scanning retouched or in execution, then it is determined as the generation of view data in step S131 (step S1312)
Prior to printing.
The scanning numbering 4 of Fig. 6 A examples is paid close attention to, corresponding image data amount A is 8,3 pairs of the scanning numbering with first 1 time scanning
The image data amount B answered is also 8.Therefore, in Fig. 6 A example, generation and 4 pairs of numbering of scanning are being terminated by step S140
At the time of view data (the view data B) answered, the view data B being correspondingly generated with the scanning numbering 2 of first 2 times scannings is
It is used in printing (the 2nd scanning has terminated).In this case, it can not be said to be when generating the view data of scanning
Before the beginning of preceding 2 scanning of the scanning or in execution, thus generating and the corresponding view data of the scanning numbering 4
In the step S131 in step S130 afterwards, image processing part 11 is determined as the generation of view data not prior to printing.
On the other hand, the scanning numbering 4 of Fig. 6 B examples is paid close attention to, corresponding image data amount A is 12, with first 1 time scanning
It is 8 to scan the corresponding image data amount B of numbering 3, and image data amount B corresponding with the scanning numbering 2 of first 2 times scannings is 4.Cause
This, in the example of 6 b it, generation view data (view data B) corresponding with scanning numbering 4 is being terminated by step S140
At the time of, the view data B being correspondingly generated with the scanning numbering 2 of first 2 times scannings is not yet for (the 2nd scanning to be not in printing
Start).In this case, can be described as when generating the view data of scanning the scanning it is preceding 2 times scanning open
Before beginning or in execution, thus generating and the step in the step S130 after the corresponding view data of the scanning numbering 4
In S131, image processing part 11 is determined as the generation of view data prior to printing.
In the case where being determined as the generation of view data prior to printing by the leading judgement, image processing part 11
Judge whether the view data generated in next step S140 includes the bottom (Fig. 4 step S132) of object images.
Also, (the step S132 in the case of bottom of the view data for being judged to generating comprising object images next time：It is), enter
Enter step S133, on the other hand, the situation of the bottom of object images is not included in the view data for being judged to generating next time
Under (step S132：It is no), into step S134.
The bottom of object images does not refer to the bottom of the page, and refers to the bottom of object images itself.Comprising pair
As the view data of the bottom of image turns into last scanning (final scanning) corresponding view data with printing page 1.In Fig. 3
In show by add up to 5 scanning and printings page 1 example, according to the content of object images, image is also possible in the page
Centre portion or adjacent upper part terminate, thus this page is also terminated when being printed with less scanning number.
In step S132, when in next step S140 as view data generation source cut zone (for example
Any one in cut zone R1~R5 shown in Fig. 3) in the case of the bottom comprising object images, image processing part 11
It is determined as "Yes", on the other hand, when the cut zone in the generation source as view data in next step S140 does not include
In the case of the bottom of object images, it is determined as "No".
Image processing part 11 can also perform the determination of the bottom of object images at the time of step S132 and include this
The determination (for example determining it is which of cut zone R1~R5 cut zone) of the cut zone of bottom, for example, performing
At the time of before step S120 halftone process and the switching determination for performing step S130, first carry out in advance 1 time.Also, use
So predetermined information carries out the step S132 of each time judgement.Image processing part 11 is for example according in step S100
In the final word of the end of expression this document that includes in the input data (data file) that has obtained, determine object images
Bottom.Final word is, for example, to be referred to as EOF (End Of File：End of file) code.Image processing part 11 according to
The such final word of input data detection obtained in step S100.It is last although also relying on the form of input data
Client information shows the lower end position of the object images in the page sometimes.Therefore, image processing part 11 can be by comprising in the page
The cut zone of position shown in final word is defined as the cut zone of the bottom comprising object images.Also, will so
Position (lower end positions of object images) shown in the cut zone internal ratio final word of determination is determined by upstream side US region
For remaining white region, the region beyond the remaining white region in the cut zone of the determination is defined as to the bottom of object images.
But, above-mentioned final word also illustrates that the lower end of the page itself, rather than page according to the form of input data sometimes
The lower end of object images in face.Under the circumstances, image processing part 11 can also analyze in more detail input data with
Determine the bottom of object images.For example, image processing part 11 is in halftone data HT, the position shown in final word is set
For the interim lower end position of object images.Also, judge whether the corresponding grid stroke of interim lower end position is not show
The remaining white light grid line of object images.Remaining white light grid line refers to only by whole ink color regulations for using printing equipment 10 without point
Pixel constitute grid stroke.Image processing part 11 judges and DS pairs of downstream in the case where being judged to being remaining white light grid line
Answer whether the ground grid stroke adjacent with the remaining white light grid line is remaining white light grid line.Image processing part 11 is sentenced as performing repeatedly
It is fixed, when it is not remaining white light grid line (non-remaining white light grid line) that certain grid stroke, which is determined as, the non-remaining white light grid line is regarded as
The lower end of object images.Also, the cut zone comprising the non-remaining white light grid line is defined as including to the bottom of object images
Cut zone, and will be defined as pair from the region of non-remaining white light grid line to the downstream DS in the cut zone of the determination
As the bottom of image.Certainly, image processing part 11 can not also determine the bottom of object images according to final word.
So in the case of "Yes" is determined as in step S131, S132 both sides, image processing part 11 determines that execution is overlapping
The lower end processing (step S133) that company send.Lower end processing is the general name of the print processing of the bottom of object images, also will weight
The lower end processing that folded company send is referred to as the 1st print processing.On the other hand, when judgement in the arbitrary steps in step S131, S132
In the case of "No", image processing part 11 determines to perform common print processing (step S134).Common print processing is also
Comprising not by overlapping company send premised on common lower end processing.The processing of common lower end is also referred to as the 2nd print processing.
Image processing part 11 is according to the lower end processing or lead to that the result of step S130 switching determination is that overlapping company send
The decision of normal print processing, performs ensuing view data generation processing (step S140).The lower end sent in overlapping company
In processing and common print processing, each pixel for constituting view data is different with each nozzle Nz relations of distribution.In weight
In the lower end processing that folded company send, a part of nozzle Nz that upstream side US is used only in printhead 22 beats the bottom of object images
Print is on the print medium.On the other hand, in common print processing, printhead 22 preferentially will using downstream DS nozzle Nz
Object images are printed on the print medium.
In the case of the lower end processing that the overlapping company of execution send is determined in step s 130, in step S140, figure
As processing unit 11 generates the view data (the 1st view data) for making printing portion 20 perform the lower end processing that overlapping company send.Specifically
For, when the final scanning with the bottom of print object image is correspondingly generated 1 view data, it will constitute and object
The distribution destination of each pixel of the suitable grid stroke in the lower end of image is determined as nozzle rows NL most upstream side US nozzle Nz
(nozzle numbering #1).Also, on the basis of the relation of such distribution destination, also determine other pictures of the 1st view data
The plain relations of distribution with other nozzle Nz.It is that overlapping company send that printing portion 20 performs final scanning according to such 1st view data
Lower end is handled.
In the case of the common print processing of execution is determined in step s 130, in step S140, image procossing
Portion 11 generates the view data (the 2nd view data) for making printing portion 20 perform common print processing.Specifically, with 1 time
When scanning is correspondingly generated 2 view data, each picture for the grid stroke for being located at most downstream side DS in cut zone will be formed in
The distribution destination of element, is determined as nozzle rows NL most downstream side DS nozzle Nz (nozzle numbering #N).Also, with such point
On the basis of relation with destination, other pixels of the 2nd view data and the other nozzle Nz relations of distribution are also determined.Printing
It is common print processing that portion 20 performs 1 scanning according to such 2nd view data.
Fig. 7 A examples go out printing portion 20 and performed in the final scanning for printing page 1 after the lower end processing that overlapping company send
State, Fig. 7 B examples go out printing portion 20 and are performed in the final scanning after common print processing (common lower end processing)
State.Nozzle rows NL and the paper P as print media relation are shown in fig. 7, left side is shown 1 before finally scanning
Image PR4 is printed upon the state on paper P in secondary scanning, right side shows that image PR5 is printed upon into paper P in final scanning
On state.Similarly, nozzle rows NL and paper P relation are shown in figure 7b, left side shows to sweep in first 1 time finally scanned
Retouch state image PR4 being printed upon on paper P, right side shows that image PR5 is printed upon on paper P in final scanning
State.A nozzle rows NL in multiple nozzle rows NL that printhead 22 has only simplifiedly is shown in Fig. 7 A, Fig. 7 B.
It is the 5th scanning that final scanning is set in Fig. 7 A, Fig. 7 B.Also, image PR4 (is joined according to cut zone R4
According to Fig. 3) corresponding view data image for printing in the 4th scanning, image PR5 be according to and cut zone R5 (references
Fig. 3) the image i.e. bottom of object images that corresponding view data is printed in final scanning.Image PR5 lower end BE
It is the lower end of object images.
In Fig. 7 A, Fig. 7 B, the 4th scanning for printing image PR4 is all common print processing.In relatively Fig. 7 A and
During Fig. 7 B, the nozzle Nz that is used in print image PR5 and conveyed since the 4th end of scan to during final scanning
The paper feeding distance that portion 26 is performed is different.That is, printing portion 20 is handled as the feelings finally scanned in the lower end that the overlapping company of execution send
Under condition, using only upstream side US a limited number of nozzle Nz print images PR5 (Fig. 7 A).Also, printing mechanism control unit 21
In the processing of lower end that such overlapping company send, make delivery section 26 after the 4th end of scan and before final scanning starts, will
Paper P arrives nozzle Nz (the nozzle numbering #1) printings pair by most upstream side US to conveying direction D2 downstream DS conveyings (paper feeding)
As the lower end BE of image position.In fig. 7, the paper feeding amount required for the lower end processing that overlapping company send is represented with symbol L1.
On the other hand, printing portion 20 is used as the feelings finally scanned in the common print processing (common lower end processing) of execution
Under condition, according to the generally like that preferential nozzle Nz print images PR5 (Fig. 7 B) using downstream DS.Printing mechanism control unit 21 exists
In such common print processing (common lower end processing), make delivery section 26 after the 4th end of scan and final scanning
Before beginning, paper P is arrived into nozzle Nz (the nozzle volumes by most downstream side DS to conveying direction D2 downstream DS conveyings (paper feeding)
Number #N) print image PR5 upper end (most downstream side DS grid stroke) position.In figure 7b, represent common with symbol L2
Paper feeding amount required for print processing (common lower end processing).Paper feeding amount L2 is said reference paper feeding amount.According to Fig. 7 A, Fig. 7 B
Understand, paper feeding amount L1≤paper feeding amount L2.
Printing portion 20 performs overlapping company in the lump in the case where the lower end processing that the overlapping company of execution send is as final scanning
Send, in the case where performing common print processing, the overlapping company is not performed and is sent.
Fig. 8 A are by the viewpoint towards main scanning direction D1, and example goes out to perform lower end processing that overlapping company send as final
Scan and perform the state after overlapping company send, Fig. 8 B are likewise by the viewpoint towards main scanning direction D1, and example goes out to perform logical
Normal lower end processing is as finally scanning and be not carried out the state that overlapping company send.
In Fig. 8 A, Fig. 8 B, the nozzle opening surface of printhead 22 is represented with symbol 22a, printing equipment is represented with symbol 28
The pressing plate of a part for 10 transport paths as paper P having.Nozzle opening surface 22a is each spray that printhead 22 has
The face of mouth Nz openings.Pressing plate 28 is the face relative with nozzle opening surface 22a, and paper P is by delivery section 26 by defeated on pressing plate 28
Send.Certainly, printing equipment 10 also suitably has the part (not shown) beyond pressing plate 28, to be guided along the transport path
Paper P.Delivery section 26 have the feed roll 26a of the example as the unit for conveying paper P, a pair of conveying roller 26b, 26b, a pair
Distributing roller 26c, 26c etc..Paired conveying roller 26b, 26b holds paper P, and downstream side DS conveys paper P, similarly, in pairs
Distributing roller 26c, 26c hold paper P downstream side DS convey paper P.One side of roller centering can also be driven voller.
Feed roll 26a is located at most upstream side US in each roller of diagram, is rotated with from the supply (not shown)
Downstream side DS supplies paper P in source.Conveying roller 26b, 26b are located at than feed roll 26a downstreams DS and somewhat leaned on than balladeur train 23
Upstream side US position.Distributing roller 26c, 26c are located at than the somewhat downstream DS position of balladeur train 23.Conveying roller 26b, 26b and
Distributing roller 26c, 26c primarily to discharge after paper P paper feeding and printing and synchronously rotate.Delivery section 26 for example with
Make the motor that feed roll 26a rotates and the motor for rotating conveying roller 26b, 26b and distributing roller 26c, 26c, by driving this
A little motors, independently control feed roll 26a rotation and conveying roller 26b, 26b and distributing roller 26c, 26c rotation.
In Fig. 8 A, Fig. 8 B, the paper P currently printed is also denoted as leading paper P1, will be followed by printing
Follow-up paper P be also denoted as follow-up paper P2.In addition, the paper P shown in Fig. 7 A, Fig. 7 B belongs to leading paper P1, Fig. 7 A,
Follow-up paper P2 diagram is eliminated in Fig. 7 B.According to Fig. 8 A example, leading paper P1 is with by the spray by most upstream side US
The state that the lower end BE of mouth Nz (nozzle numbering #1) print object image position is sent out, the ink for receiving finally to scan sprays simultaneously
It is image PR5 (reference picture 7A) to print bottom.As described above, the paper feeding amount L1 ratios required for the lower end processing that overlapping company send
Benchmark paper feeding amount L2 is short.Therefore, in the lower end processing that overlapping company send, leading paper P1 is often the rear end E1 in paper
Receive ink in the state of nearby being clamped by conveying roller 26b, 26b to spray.The rear end of paper refers to the upstream side US towards paper
End, the front end of paper refers to the end of the downstream DS towards paper.Rear end E1 is nearby pressed by conveying roller 26b, 26b,
Even if thus receive the ink that finally scans and spray, leading paper P1 is also almost not curled (bending).
A part and the remaining white (elder generation of leading paper P1 bottom side of follow-up paper P2 front are shown in fig. 8 a
Lower end BE in row paper P1 than object images leans on upstream side US scope) overlapping state.That is, leading paper P1 and follow-up paper
P2 is opened to be sent by overlapping company.In the case of the lower end processing that the overlapping company of execution send is determined in step S133 (Fig. 4), image
Processing unit 11 indicates that printing mechanism control unit 21 begins through delivery section 26 (feed roll 26a) and conveys follow-up paper at the time of regulation
Open P2.At the time of the decision is made by step S133, performed by 22 couples of leading paper P1 of printhead more forward than finally scanning
The scanning scanned several times, still, by indicating to start to convey follow-up paper P2 at the time of the regulation, for example, is starting for first
At the time of row paper P1 final scanning, follow-up paper P2 reaches remaining white with leading paper P1 bottom side as shown in Figure 8 A
Overlapping position.
On the other hand, according to Fig. 8 B example, leading paper P1 is with by the nozzle Nz by most downstream side DS, (nozzle is compiled
Number #N) print image PR5 upper end (most downstream side DS grid stroke) the state sent out of position, receive the ink finally scanned
Spray and print bottom (image PR5) (reference picture 7B).Symbol TE in Fig. 8 B represents the position of image PR5 upper end.
The paper feeding based on benchmark paper feeding amount L2 is performed in common print processing, when the final scanning of execution is common lower end processing
Carve, leading paper P1 rear end E1 is often positioned in the position than conveying roller 26b, 26b downstreams DS.With near the E1 of rear end not by
The state of conveying roller 26b, 26b clamping receives the leading paper P1 that the ink that finally scans sprays, because of the water of ink received
Divide and swelling, as shown in Figure 8 B, easily crimped near the E1 of rear end.In addition, large showing leading paper P1 curlings in the fig. 8b
Shape, to be readily appreciated that.
When follow-up paper P2 front is overlapping with the leading paper P1 crimped near the E1 of rear end, before follow-up paper P2
End is lifted and got too close to printhead 22 or touch printhead 22 by leading paper P1 rear end E1, there is print quality drop
Low risk.Therefore, in the present embodiment, necessarily perform at the lower end that overlapping company send in the case that overlapping company send
Reason, it is to avoid the generation of the risk.When the conveying of follow-up paper P2 when performing leading paper P1 common lower end processing starts
It is known to carve and convey follow-up paper P2 when i.e. not overlapping company send, thus is no longer described.
4. the effect of present embodiment：
So, according to present embodiment, whether first image processing part 11 (data processing division) carries out the generation of view data
In the leading judgement of printing, in the case where the generation of view data is leading, printing portion 20 is set to perform the 1st print processing (overlapping
The lower end processing that company send), so as to the bottom of print object image, in the case where the generation of view data is not leading, make
Printing portion 20 performs the 2nd print processing (common lower end processing), to print the bottom.That is, can be according in printing
When the generation of view data that uses and the printing based on view data between temporal correlation switching lower end processing.
If the generation of view data is prior to printing, it may be said that making printing high speed by performing overlapping company and sending.It is another
Aspect, if the generation of view data is not prior to printing, produces printhead 22 and waits the situation such as scanning next time for the time being, even if
Worry and send conveying follow-up paper by overlapping company, the high speed of printing is not reached sometimes yet.Also, if do not make view data
Generation starts to convey follow-up paper, sometimes follow-up paper prior to printing a certain degree of surplus even if then sending by overlapping company
Will not in place with overlap constantly on leading paper.That is, in the present embodiment by carrying out the leading judgement,
Determine whether the situation that overlapping company send that should substantially perform.Also, in the case where the generation of view data is leading, pass through
Perform overlapping company with overlapping together with processing with lower end that is sending and send, it is to avoid because overlapping company send formed by the risk, and in fact
The high speed now printed.Also, if the generation of view data is not leading, then perform the processing of common lower end and without overlapping
Company send, thus, it is to avoid occur the useless risk.
Separated and when individually comparing the lower end that the processing of common lower end and overlapping company send and handling being sent with overlapping company, can
To say that common lower end processing is more conducive to the high speed of printing.Because at simple 1 paper feeding amount or common lower end
It is longer during reason.Also, in the lower end processing that overlapping company send, the nozzle Nz used in final scanning is defined as upstream side
US a part of nozzle Nz (the nozzle Nz of the specified quantity of the nozzle Nz comprising nozzle numbering #1).Therefore, according to should be most
The size of the image (bottoms of object images) printed eventually in scanning, in using the scanning of 1 time of this portion nozzle Nz, has
Shi Buneng terminates the printing for the image that printed in the final scanning.In this case, using this portion nozzle Nz
(paper feeding of clamping slight distance) prints the image that printed in the final scanning by multiple scanning, so as to more need
Want the time.In light of this situation, present embodiment does not perform overlapping company in the case where the generation of view data is not leading and sent, but
It is to be handled as lower end and use common lower end to handle, thus it may be said that the portfolio of printing equipment 10 can be reliably suppressed
Reduction.
The invention is not restricted to above-mentioned embodiment, can in a variety of ways it implement in scope without departing from the spirit,
Can be using embodiment and variation as described later etc..For convenience's sake, the embodiment illustrated before this is referred to as the 1st
Embodiment.
5. the 2nd embodiment：
Illustrate the 2nd embodiment below.On the 2nd embodiment, the main explanation part different from the 1st embodiment.
In the 2nd embodiment, control unit 27 is according to 26 pairs of concentration (bottom concentration) limit transport portion of the bottom of object images
The execution that overlapping company send.
Fig. 9 illustrates the example of the switching determination of different from Fig. 4, step S130 (Fig. 2) print processing using flow.
Fig. 9 has added step S1320 judgement compared with Fig. 4.
In the case of "Yes" is determined as in step S132, image processing part 11 enters step S1320.In step S1320
In, whether the bottom of image processing part 11 as described above for fixed object images judges the bottom concentration as rule
It is more than fixed threshold value.Also, be determined as bottom concentration it is higher i.e. more than defined threshold value in the case of, into step
S134, determines to perform common print processing.On the other hand, it is being determined as that bottom concentration is relatively low i.e. less than defined threshold value
In the case of, into step S133, determine to perform the lower end processing that overlapping company send.
Image processing part 11 can be according to halftone data HT, having in pair region corresponding with the bottom of object images
The quantity of point is counted, and bottom concentration is judged according to the count results.Image processing part 11 is for example set by constituting object diagram
As bottom each pixel as defined in point (a little) sum be bottom point total number X.In this case, by every kind of ink
The point of water color is counted as at 1 point respectively.Also, the ink color number Z for using printing equipment 10 is obtained (if using CMYK
The type of 4 kinds of colors of ink, then Z=4) bottom with constituting object images pixel count Y be multiplied obtained by value (bottom
Sum of all pixels Y × Z).Also, if X/ (Y × Z) is determined as bottom concentration defined more than defined threshold value, then
More than threshold value, if X/ (Y × Z) is less than the defined threshold value, it is determined as that bottom concentration is less than the defined threshold value.
As described above by being divided into a little in halftone data HT it is a little bigger, have midpoint, have the so different chis of dot
In the case of very little point, image processing part 11 can also be assigned when being counted to described total number X according to every kind of size of point
Different weights are given to be counted.For example, being counted as a little louder in the case of 1 point by 1,1 midpoint is set at 0.5 point, by 1
Individual dot is set to 0.2 point etc. and counted.Or, image processing part 11 can also be concerned only with the spy in the bottom of object images
Determine the quantity of the point of ink (such as K inks), simply judge that bottom concentration is high or low.Or, image processing part 11
It can be accounted for according to the quantity of the pixel with point more than a kind of color in the pixel count Y of bottom of object images is constituted
Ratio, simply judges that bottom concentration is high or low.Or, image processing part 11 can also be by the lower end comprising object images
The ratio of the pixel a little in cut zone (such as cut zone R5) including portion is considered as bottom concentration, according to the lower end
Portion's concentration is high or low to processing progress branch.
After step S133 is entered according to step S1320 judgement, in a same manner as in the first embodiment, finally swept performing
When retouching, printing portion 20 performs the lower end processing that overlapping company send and overlapping company send.Also, enter in the judgement according to step S1320
Enter after step S134, in a same manner as in the first embodiment, when performing final scanning, printing portion 20 performs common lower end processing
(and do not perform overlapping company send).That is, control unit 27 makes printing portion 20 for print object image according to bottom concentration
Bottom and the print processing (lower end processing) that performs is different.
So, according to the 2nd embodiment, control unit 27 is according to holding that the overlapping company of bottom concentration limitation of object images send
OK.Wind when overlapping company send is performed therefore, it is possible to the amount of crimp according to the paper P changed according to bottom concentration
The possibility occurrence of danger, limits the execution that overlapping company send.Specifically, in the case where bottom concentration is high to a certain extent,
Can predict will spray substantial amounts of ink, the remaining white neighbouring curling of bottom side by finally scanning to paper P
Increase.Therefore, in the case where bottom concentration is more than defined threshold value, control unit 27 is controlled such that delivery section 26 not
Overlapping company is performed to send.
In addition, the lower end sent by overlapping company is handled, as shown in Figure 8 A, by conveying roller near paper P rear end E1
The possibility increase finally scanned is performed in the state of 26b, 26b clamping.But, due in conveying roller 26b, 26b design
Position or the lower end BE position of object images etc., also not necessarily can be in institute even if carrying out the lower end processing that overlapping company send
State and final scanning is performed in the state of rear end E1 is nearby clamped by conveying roller 26b, 26b.Under the circumstances, even in step
In the case of the judgement that "Yes" has all been carried out in S131, S132 (Fig. 9), also forbid when the bottom concentration of object images is higher
The 2nd embodiment that overlapping company send, it may be said that be reliably to avoid because of paper P curling to occur when overlapping company send
The technology of the risk.
6. variation
Not by overlapping company send premised on common lower end processing concrete example be not limited to above-mentioned mode.For example, generally
Lower end processing (the 2nd print processing) can also be following processing：Make most upstream side US nozzle Nz (nozzle numbering #1)
State corresponding with vacating the position on the paper P after the defined remaining distance of W amounts in vain from paper P rear end towards downstream DS
Under, the bottom of object images is printed upon on paper P.Remaining white W width is pre-determined, e.g. 3mm.That is, from
Paper P rear end vacates the position on the paper P after the distance of remaining white W amounts towards downstream DS, refers to from paper P rear end
Into inner side such as 3mm position.The position is referred to as to the fixation lower end BE ' of object images.That is, the variation has been pointed out as follows
Lower end processing：It is the lower end that fixed lower end BE ' is considered as object images by pre-determined position, makes the most upstream side US's
Nozzle Nz (nozzle numbering #1) is aligned with fixation lower end BE ' and printed.
In the case where determining the common print processing of execution by step S130 (Fig. 2), in step S140, image
Processing unit 11 generates the view data (the 2nd view data) for making printing portion 20 perform common print processing.Specifically, with
When not being that the scanning of the final scanning of the bottom of print object image is correspondingly generated 2 view data, it will be formed in point
The distribution destination of each pixel for the grid stroke for being located at most downstream side DS in region is cut, nozzle rows NL most downstream side DS is determined as
Nozzle Nz (nozzle numbering #N).Also, the relation of such distribution destination is also determined into the 2nd picture number as benchmark
According to other pixels and other nozzle Nz the relations of distribution.Moreover, in the final scanning pair with the bottom of print object image
When answering ground 2 view data of generation, the distribution mesh of each pixel of the grid stroke suitable with fixed lower end BE position will be constituted
Ground, be determined as nozzle rows NL most upstream side US nozzle Nz (nozzle numbering #1).Also, by such distribution destination
Relation also determines other pixels of the 2nd view data and the other nozzle Nz relations of distribution as benchmark.
Figure 10 examples go out printing portion 20 and performed in the final scanning for printing page 1 at the common printing of the variation
Manage the state after (common lower end processing).Figure 10 interpreting blueprints mode is identical with Fig. 7 A, Fig. 7 B.According to Figure 10, print image PR
Final scanning be shape in paper P fixation lower end BE and most upstream side US nozzle Nz (nozzle numbering #1) position alignment
Performed under state.Printing mechanism control unit 21 makes delivery section 26 in the 4th end of scan in such common lower end processing
Scan afterwards and finally before starting, paper P is arrived into the spray by most upstream side US to conveying direction D2 downstream DS conveyings (paper feeding)
The fixed lower end BE ' of mouth Nz (nozzle numbering #1) printings position.In Fig. 10, with symbol L3 represent the variation it is common under
Paper feeding amount required for the processing of end.In the case of in the actual lower end of object images being lower end BE consistent with fixed lower end BE ',
Paper feeding amount L3=paper feeding amounts L1.But, often inconsistent (lower end BE is located at than fixed lower end BE ' lower end BE with fixed lower end BE '
Downstream DS position), thus paper feeding amount L1≤paper feeding amount L3 establishments.Therefore, it can be said that the common lower end of the variation
Handle the high speed that printing is readily facilitated compared with the lower end processing that overlapping company send.
The most upstream side US illustrated before this nozzle Nz (nozzle numbering #1) and most downstream side DS nozzle Nz (compile by nozzle
Number #N) it is not limited to refer to the nozzle Nz of actual most end in nozzle rows NL.For example, there is nozzle rows NL in upstream side US, downstream
The respective ends of DS have a case that the nozzle (nominal nozzle) for being not used in printing.In the case where there is this nominal nozzle,
In nozzle Nz in the nozzle Nz for constituting nozzle rows NL in addition to nominal nozzle, upstream side US, downstream DS are determined each
Nozzle Nz.Also, the concept of the printing of regulation unit is not limited to 1 scanning of printhead 22.Printing equipment 10 for example also may be used
So that the Multiple-Scan that image corresponding with a cut zone is divided into printhead 22 to be printed.
Claims (10)
1. a kind of printing equipment, it is characterised in that the printing equipment has：
Delivery section, it conveys print media；
Printing portion, it performs printing to the print media；And
Control unit, it controls the delivery section and printing portion,
The delivery section is able to carry out overlapping company and sent, and it is under the image being printed onto on the print media that the overlapping company, which send,
The remaining part for locating overlapping follow-up print media in vain of end side is conveyed,
The control unit limits the execution that the overlapping company send according to the concentration of the bottom.
2. printing equipment according to claim 1, it is characterised in that
The final word of the end of expression this document that the control unit is included in the file according to performance described image determines institute
State bottom.
3. printing equipment according to claim 1 or 2, it is characterised in that
The control unit generate for make printing portion printing described image, define a little or nothing according to each pixel
The data of point, bottom described in the quantitative determination a little in region corresponding with the bottom in the data it is dense
Degree.
4. the printing equipment described in any one in claims 1 to 3, it is characterised in that
In the case where the concentration of the bottom is more than defined threshold value, the control unit does not make the delivery section perform institute
Overlapping company is stated to send.
5. the printing equipment described in any one in Claims 1 to 4, it is characterised in that
The control unit makes the printing portion in order to print the bottom of described image and performed according to the concentration of the bottom
Print processing it is different.
6. a kind of Method of printing, it is characterised in that the Method of printing has：
Supplying step, conveys print media；And
Printing step, printing is performed to the print media,
In the supplying step, the execution that overlapping company send is limited according to the concentration of bottom, it is to be printed that the overlapping company, which send,
Locate in vain more than the bottom side of the image on the print media overlapping follow-up print media a part carry out it is defeated
Send.
7. Method of printing according to claim 6, it is characterised in that
The bottom is determined according to the final word of the end of the expression this document included in the file of performance described image.
8. the Method of printing according to claim 6 or 7, it is characterised in that
Generate for make printing portion print described image, according to each pixel define a little or the data without point, according to
The concentration of bottom described in the quantitative determination a little in region corresponding with the bottom in the data.
9. the Method of printing described in any one in claim 6~8, it is characterised in that
In the case where the concentration of the bottom is more than defined threshold value, the overlapping company is not performed and is sent.
10. the Method of printing described in any one in claim 6~8, it is characterised in that
According to the concentration of the bottom, make the print processing performed to print the bottom of described image different.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016056873A JP2017170679A (en) | 2016-03-22 | 2016-03-22 | Printing device and printing method |
| JP2016-056873 | 2016-03-22 |
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|---|---|
| CN107215109A true CN107215109A (en) | 2017-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710148816.2A Pending CN107215109A (en) | 2016-03-22 | 2017-03-14 | Printing equipment and Method of printing |
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| Country | Link |
|---|---|
| US (1) | US20170274682A1 (en) |
| JP (1) | JP2017170679A (en) |
| CN (1) | CN107215109A (en) |
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| JP6993858B2 (en) * | 2017-12-06 | 2022-01-14 | キヤノン株式会社 | Image forming device, its control method, and program |
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| CN103832075A (en) * | 2012-11-20 | 2014-06-04 | 精工爱普生株式会社 | Printing apparatus and printing method |
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| JPH0747740A (en) * | 1993-08-05 | 1995-02-21 | Tec Corp | Serial printer |
| US20060187287A1 (en) * | 2005-02-18 | 2006-08-24 | Lexmark International, Inc. | Method of printing with overlapping paper feed |
| JP2009208364A (en) * | 2008-03-04 | 2009-09-17 | Riso Kagaku Corp | Image forming apparatus |
| JP6383184B2 (en) * | 2014-06-04 | 2018-08-29 | キヤノン株式会社 | Recording apparatus, control method therefor, program, and storage medium |
| CN104228357B (en) * | 2014-09-23 | 2017-02-08 | 茂名森源电子科技有限公司 | Inclined entering type printer |
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- 2016-03-22 JP JP2016056873A patent/JP2017170679A/en not_active Withdrawn
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- 2017-02-15 US US15/433,489 patent/US20170274682A1/en not_active Abandoned
- 2017-03-14 CN CN201710148816.2A patent/CN107215109A/en active Pending
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| JP2001324844A (en) * | 2000-03-10 | 2001-11-22 | Sharp Corp | Image forming device |
| CN1796119A (en) * | 2004-12-13 | 2006-07-05 | 精工爱普生株式会社 | Printing device, printing device control, and printing data generation device and method |
| CN1810508A (en) * | 2005-01-28 | 2006-08-02 | 精工爱普生株式会社 | Printing device, printing device control method, print data generation device, and print data generation method |
| CN102079180A (en) * | 2009-11-30 | 2011-06-01 | 精工爱普生株式会社 | Printing apparatus and abnormality determining method |
| CN202098125U (en) * | 2009-12-29 | 2012-01-04 | 精工爱普生株式会社 | Conveying roller and conveying unit as well as printer |
| JP2013014090A (en) * | 2011-07-05 | 2013-01-24 | Canon Inc | Recording device and recording method |
| CN103832075A (en) * | 2012-11-20 | 2014-06-04 | 精工爱普生株式会社 | Printing apparatus and printing method |
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| US20160052311A1 (en) * | 2014-08-25 | 2016-02-25 | Canon Kabushiki Kaisha | Printing apparatus and control method therefor |
Also Published As
| Publication number | Publication date |
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| JP2017170679A (en) | 2017-09-28 |
| US20170274682A1 (en) | 2017-09-28 |
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